Wagon-jack



(No Model.) W. H. GRAY.

WAGON JAGK. No. 301,229. Patented July 1; 18 84.

DTVENTOR ATTORNEYS.

" m: l I I llllll m9 N PETERS. Phmo-Liihogruphor. wmm wn. u. c.

nmnamwm J 2 WITNESSES Jaw airrnn dramas \VILLIAM H. GRAY, OF NEAPOLIS, OHIO.

WAGON JACK.

SPECIFICATION forming part of Letters Patent No. 301,229, dated July 1, 1884'.

Application filed April 2, 1884. (No model.)

Z19 all w/wm it may concern.-

Be it known that 1, WILLIAM H. GRAY, of Neap-olis, county of. Lucas, Ohio, have in vented a new and Improved Wagon-Jack, of which the following is a full, clear, and exact description.

The object of my invention is to provide a wagon jack for lifting racks and wagon-boxes from the running-gear of wagons, and it consists of a horizontal bed-frame and vertical guides, in combination with a vertically-slid' ing frame carrying two brackets for engaging the rack or wagon-box, and in a pawl-andratchet mechanism for raising the said sliding frame and maintaining it in an elevated position.

Reference is to be had to the accompanying drawings, forming apart of this specification, in which similar letters of reference indicate corresponding parts in both figures.

Figure l is a side sectional elevation of my improved jack, and Fig. 2 is a plan view.

The bed-frame A, composed of side bars a and cross-bars b c, is mounted upon rollers d, for convenience of moving. At or near the centers of the side bars a are erected two grooved posts, a, connected together at the top by the cross-bar f, and stiffened by braces connected with the bed frame. A frame, 13, composed of tongued side bars h, adapted to the grooved posts 0, center bars, t, and cross-bars j, is placed between the posts e,and carries two brackets, Z, projecting from the side bars h and stiffened by braces m. 011 the opposite side of the frame B a ratchet-bar, n, is secured to the center bar, 2', of the frame B, and ahooked pawl, o, pivoted to the crossbar f, is pressed forward into engagement with the ratchet-bar aby a spiral spring, p, abutting against an arm, q, extending downward from the crossbarf. A crank-shaft, r, is journaled in posts s,secured to the cross-bar Z), and supports a lever, 0, whose shorter arm is curved upward, and is provided with an iron shoe, 2?, capable of engaging the ratchet bar a. The lever O is secured. to the crank shaft why a staple, a. A foot-lever, D, pivoted to the bar 0, is connected by a cord, 2), extending through a staple in the top of one of the posts s and through a hole in the arm q,with the hooked pawl 0. A draw-rod, E, is connected by a staple with the crossbar b, and is used in pulling the jack from one place to another.

The jack is moved forward so as to bring the brackets Z under the object to be lifted when the shoot of the lever Ois brought into engagement with the ratchet-bar a. A downward pressure of the lever O raises the ratchet-bar and frame B, connected therewith, and the hooked pawl 0 retains the frameB andits load while the lever O is moved to secure a new bite on the ratchet-bar a. The crank-shaft 1" admits of the-necessary longitudinal motion of the lever C. When it is desired to lower the frame B, the lever O is pressed downward, so as to release the hooked pawl 0, when the said hooked pawl may be withdrawn from the ratchet by the pressure of the foot against the lever D.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a wagon-jack, the combination, with the vertically-sliding frame B, of bracketsl and pawl-and-ratchet mechanism for raising the said frame, as described.

2. The combination, with the vertically sliding frame 13, provided with a ratchet-bar, a, of the lever O and crank-shaft 7', as described.

3. The combination, with the grooved posts 6, eonnectedby the crossbar f, provided with the arm q, and the sliding frame B, provided with the rack 11,,of the hooked pawl 0, pivoted to the said cross-bar, the spring interposed between the arm q and pawl 0, the cord 1), and the foot-lever D, substantially as herein shown and described.

XVILLIAM H. GRAY.

Witnesses:

T. 1?. MEREDITH, J. H. METKEFF. 

